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Altera_Forum
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16 years ago

memory-to-memory sgdma problem

Hello, I am testing the sgdma core by copy data from one on-chip-memory buffer to the other. However, I met a confusing problem that the actual_transfered_bytes is always zero. Can anybody he...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I recently made the sgdma work in the setup described in this topic but I'd like now to move data from one second on chip memory to a third one. I tried several ways to connect the sgdma to the memory blocks but it never works. I guess that the main problem is that the connection of the devices in the SOPC builder is not done correctly. Is there any place where I can find the purpose of the csr/descriptor_read/descriptor_write/m_read/m_write I/O of the SGDMA block ?